Ore disintegrating and screening machine.



G. W. CRUW. URE NTGR-FNG AWD SCRENWG MACHINE. npwm'mra mw) i6, 19:3.

w Patented 0015.121915. 4 sHTs-sHET 1.

G. W. CROWE. ORE DISlNTEGM-TI'NG AND SCBEENHJG MCHH'NE. APPLxcmoN mm SEPT. le, m13.

Paenied @at i?, 1915.

4 SHEETS-SHEET 2.

I n a i. ichoro` o o @.moa omwowowowvowowoooooooooooc( o distance to permit the same to be covered by disintegrating parts which will now be described.

.I lind it convenient to use railroad rails as disintegrating bars for carrying the mate rial upwardly and ycause the resulting descending movement of the material to effect disintegrating action by attrition upon itself and also upon the disinte rating members.- One of the rails isindicate at 31, in Fig. 2, and is shown to be straight in form but dis posed at an angle or slightly canted with respect to the longitudinal axis of the shell 1. The inclined disposition of the rail or rails is such asto provide a spiral disposition such as will advance the material toward the discharge end 7 the direction of rotation being indicated by the arrow'in Fig.y 2.

I preferably anchor the rails 31 by means having adjustable tightening portions exposed exteriorly .of the shell for ready access for purposes of adjustment and also to' protect such portions from injurious action to which they would be subjected if they were interiorly disposed.

As shown, U-shaped bolts 3 2 are disposed through suitableopenings provided in the webs ofthe rails 31, the iianges of the rails beingjslotted, as shown at 33, so that the bolts will not only hold the rails against 'the lining of the shell but also lock the same against circumferential displacement. At the ymeeting ends of the lining plates` 28 I provide slots 34.for passage therethrough of the ends of the bolts 32. The imperforate portion 2 of the shell is provided with openings for projection therethrough of the threadedends of the bolts so that nuts 35 can be applied to tighten the bolts. Inter mediate of the ends of the plates l28 I provide slots 36 for passage of those rails intermediate the end plate-covering rails.

' It will'be seen by reference to Fig. 2, that the rail 31 covers the joints of the adjacent end plates and that the latter are arranged to vbreak joint in v,such a manner thatthe fiange of the rail will cover all of the joints. It willv be seen from the foregoing that the bolts not only function to hold the rails against displacement in any direction with respect to the shell but they likewise hold the lining plates. The perforate end 3 is provided with a perforate or screening portion which may comprise a u plurality o openings 37 disposed in the shell 1. .Abreast of the outermost openings I preferably provide guards which may be in the form of angle-rings 38,suitably Vsecured to the shell 1. These guards 38 inwardly overlap the entrance sides 39 of a discharge chute 40 and I carry the entrance sides 39 upwardly about the screening portion 3, as shown in' Fig..4.

The screening portion 3 is lined with a plurality of bars 41 which are shown disbars 41, as shown more particularly in Fig.

4, are tapered transversely and are disposed with their larger edges radially innermost and their smaller edges radially outermost. Suitable spacing blocks 44 are interposed between the bars 41 to distance the same in suitable spaced relation. If it is desired to tie a plurality of bars together in a section, by bolts 45, the same may be put in and removed in sections, one or more bars beingindependent to provide keys to permit of removal or insertion of the remaining bars in sections. rIhe bars are anchored. against endwise movement, and preferably in abutting relation against the shield 42 by a iill- @ing ring 46 which may be formed in sections,

which are interposed between the outer ends of the bars 41 and the head 6. The outer ends of the bars 41 are prevented from n movement radially inwardly by a retaining ring 47 whichmay be in the form of sections and which is shown anchored to the j shell 1 by bolt 48, y bolts which may passy through the filling ring sectionsA 46.

Means may be provided `for supplying wa ter under pressure so as to effect corrosion' durlng d1s1ntegrat1on,-and as shown, sai-d g means consists of a pipe 49 which maybe extended through the shell as shown and connected with any vsuitable 'source of supply of water under pressure. That end of tle pipeadjacenhthe feed head 4 maybe sup-` ported by a bracket 50. I have shown-the' pipe 49 provided with perforations 51 extending throughout thelength ofthe pipe but in most cases the fsuplyof water will. A

only be necessary in a disintegrating por tion 2. In cases where a dry operation; is possible the pipe may be dispensed with.

In operation, disintegration results from Y action between the material and the bars 31, the latter serving to carry up the material in the direction of rotation of the shell and then releasing material so that it falls upon, itself and is subjected to a grinding and disintegrating action causing areduction ofthe material into a mass composed of large and smallesized pieces.l On this rolling mass the water under pressure is projected and a.

corrosive as well as a disintegrating action will result. `Longitudinally, the surface of the material will slope from the inlet to the discharge end, the slope being more .p-rol nounced near the discharge end by reason of egress of the finer material threugh ythev perforate portion of the shell, thc larger pieces or' material being ejected through the opening 7 of the discharge head 6.

ItWill be seen that three methods of disintegration are possible with the device of ary-invention, namely, attrition of the gravel uand" boulders on the bars or rails 3l, attrijtion and grinding of the boulders and gravel v tvhen oneportion of the mass descends upon another, and disintegration and erosion by ,Jetsof Water under pressure applied to the moving mass. lt will also be noted that in one shell combine a disintegrating and classifyingjde'vice, the disposition and storing of the classified material being entirely by Water.

lt is believed that the advantages of the invention Will be fully understood from the foregoing description, and l,While l have herein shown and described one specific form of the invention, l do not Wish to be limited thereto exceptv for' vsuch limitations as the claims may import. n

l claim l v l. ln an ore reducer, a rotary shell, a lin ing for said shell 4composed of Wearing plates disposed in circumferential rings about the ,interior of said shell and arranged .with the junctures of the plates of one ring A Abeing circumferentially advanced with respect to the first ring in one direction longitudinally of the shell, and a disintegrating .member 'disposed longitudinally of the shell and covering the junctures of the plates alon which it is mounted.

3 gln an ore reducer, a rotary shell, a lin ing for said shell composed of Wearing plates arranged to breakjoints, and a disintegrating element disposed on said plates in a position to cover the joints between the same.

d. ln an ore reducer, alrotary shell, a lining for said shell composed. of W'earin g plates 'having end meeting margins disposed parallel with the longitudinal axis of said shell and 'the plates being, arranged so that the jointsbetvveen adjacent sets of plates will be out of alinem'ent, and means positioned over said oints and secured against the plates to vcover the joints thereof.

ln an orc reducer, a rotary shell, a lining for said shell composed of ivearing plates disposed in circumferential. rings with the meeting ends of said plates disposed' in parallel relation with the longitudinal axis of Asaid shell and the plates of one ring being disposed to lock their meeting ends out ofl alinenient with respect to the plates of anl other ring, and a disintegrating bar disposed on said plates and locked to cover said meeting ends. l

6. ln an ore reducer, a rotary shell, a lining for said shell composed of a plurality of Wearing plates, a disintegrating bar disposed on said shell and consisting of a length of railroad rail having openings in its Web, and recesses in its iianges, Ushaped bolts extending through the openings and recesses in said rail and through said shell, and meansA engaging the ends of said bolts and shell eX- terioily of the latter for tightening said bolts.

7 ln an ore reducer, a rotary shell, a liningfor said shell comprising a plurality of wearing plates having slotted portions therein, a railroad rail mounted on said plates and having openings its web and recesses in its flanges, `ll-shaped bolts extending through the openings and recesses '1n said rail and through the slotted portions of said plates exteriorly of' the shell, and means exteriorly of the shell' for tightening said bolts.

S. ln an ore reducer, a rotary'shell, a lining for said shell comprising a plurality of plates having meeting margins provided.

with slots therein, a railroad rail covering the meeting margins of said. plates land provided with openings in its web and in itsv flanges, U;liaped bolts extending through` said openings and recesses in the railvand through the slots of said meeting margins outwardly through said shell, and means exteriorly of said shell for tightening said bolts.

9. ln an ore 'reducer, a rotary shell, a lining for said shell comprising a plurality of wearing plates arranged to extend around the inner circumferential Walls thereof, a

plurality of like rings also, consisting of wearing plates fitted together, arranged in end abutting relation with said i'irst ring and fixed to have the joints between the plates thereof offset, and means arranged to extend across the joints between the plates of the several members in the oisetrelation to form a longitudinal and spirally ad-v vanced disintegratiug member.

10. In an ore reducer, a rotary shell, a lining ring for said shell comprising a plurality of wearing plates-arranged to extend around the inner circumferential Walls thereof, a plurality of like rings also consist? ing of Wearing plates iitted together and arranged in end abutting relation vvith said first ring and fixed to have the joints between the plates thereof oifset, a plurality of disintegmting members errenged Within the shell and Wearing plates to extend in a transverse relation eeross the joints between the lates of the various rings in an elongate spiral, end means to hold seid disinynegratng members in the operative relation and in e position to be en aged by the Ine-f' terial es the shell is rotate 11. In an ore reducer, e rotary shell eoml prising feed end disintegruting means and. discharge end screening ineens, `s plnrnlitiyff of wearing plates arranged in the disinteg grating portion of seid shell in exge-ebnt,-V

the screening means upon rotation of the ymateriel from the disinte :meneer:

shell, and Ineens to transmit n rote'ry motion y to seid shell.

l2. ln en ore reducer, e rotary shell nrovided with en intake disintegrating lportion I lmotion is given to the shell, end disintegrating members mounted upon the inner face of seid Wearing plates and over the shutting edges thereof-to form beties to direct the ating portion to the screening portion. of t e shell.

lin testimony whereof I elix my signature in preseneeof two Witnesses.

GEURGE WOODSON CROWE. Witnesses:

J. D. BROWN, L. C. INEN. 

